I have ver 1.1.01.25200 and want to install prscustomizer but I've read that if I update to 1.1.00.18040 it might not work. So I was wondering if anyone knows where to get older firmware that will work with prscustomizer.

Okay. I figured this out. This is how I downgraded. I deleted all the files from the prs-505 and installed the older 1.1.00.18040 which I downloaded from here. Now everything works! I installed russian font and everything runs great!

Okay. I figured this out. This is how I downgraded. I deleted all the files from the prs-505 and installed the older 1.1.00.18040 which I downloaded from here. Now everything works! I installed russian font and everything runs great!

Are you aware about http://www.the-ebook.org site? I believe you can find all the tools you need to have the latest firmware along with support of Russian.

Okay. I figured this out. This is how I downgraded. I deleted all the files from the prs-505 and installed the older 1.1.00.18040 which I downloaded from here. Now everything works! I installed russian font and everything runs great!

I have the same problem. I liked to use PRSCusomizer but failed because it complaints that I have different version: 1.101.25200. I tried also to downgrade to the older 1.1.00.18040 version but Sony upgrader refused to do that.

but until now I experienced something I could not explain:
I had the same problem and tried to FORMAT THE PRS 505 drive. I was able to, I even checked the drive was blank, then tried to reinstall Sony update,(18040) still did not let me.
I reformated again and while the drive was empty I removed the 505 from the USB just to check if it was working..... like the phoenix raising from its ashes, the menu was still there lake before despite full formating !!!! nothing had changed,
still with the 25200 version. is that spooky or WHAT? I am puzzeled.

In fact the data space you're formatting (what you call "the PRS 505 drive") is only a small part of the PRS 505 memory. It's the user space partition, where you can store your books, photos and musics.
The firmware represents the system partition, with all the software that runs and drive the PRS 505 (e.g. the main menu, the Adobe Digital Edition reader, etc.)

Thank you for your response. I was just trying to format it in order to install the sony update 85041 since your suggestion to change the code into eBookUpdater\scripts\updated.xml. does not work for me...
I followed your instructions to the letter:
can you please tell me what am I doing wrong:?
my version is 1.1.01.25200
I am trying the run the PRSCustomizer version 1.0.0..
(runnig the sony "upadate"software give my a grey square windows instead.

I understand your are replacing the full line with the same end of it ? so it's the same as erasing the begining << { this.checkmark.show(true) this.button.enable(false) this.container.setVariable("updateStatus", "This PRS-505 is up-to-date") } >> isn't it?
or should I keep the sign " {... } ' ???